Punctuation

The same sort of sensory disjunction can revive attention and provoke reflection in a hypertext reader's experience. When Diane Greco interrupts a discussion in Cyborg: Engineering The Body Electric to say:

You aren't going to like this.

she is not warning the reader so much as inviting him to consider the situation. When the reader moves on, he encounters the next page at a different pace and in a different frame of mind.